In 666, an innocent Midwestern couple (Dave Annable and Rachael Taylor) get hired as resident managers of an Upper East Side apartment building in New York owned by Gavin (Lost's Terry O'Quinn) and Olivia Doran (Vanessa Williams). Unbeknownst to them, the residents have all made deals with the devil to have their desires fulfilled.

Murciano (CSI, NCIS) will play Dr. Todd Scott, a handsome young surgeon living at The Drake. He unwittingly drives a wedge between Louise (Mercedes Masohn) and Brian (Robert Buckley) when he calls in a few prescriptions and makes some neighborly house calls to a recovering Louise. Naturally, like the other residents of The Drake, Dr. Scott will be battling some hidden demons of his own. He'll first appear in the fifth episode of the freshman season.

Moniz (Guiding Light, Damages) will play Ingrid, the therapist of Drake resident Nona (Samantha Jade Logan). Despite Nona's resistance to dig deep in their sessions, Ingrid shows a genuine concern for her young patient and hopes that if Nona cannot trust her, perhaps she can open up to the trusting Jane (Taylor). She'll first appear in the Oct. 14 episode.